Hammer crusher with screening structure

A hammer crusher and screening technology, which is applied in the field of coal mine machinery and equipment, can solve the problems of indistinguishable crushing, etc., achieve the effects of convenient matching, reducing hammer head wear, and avoiding excessive crushing and secondary crushing

Inactive Publication Date: 2014-10-15
CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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  • Abstract
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Problems solved by technology

[0003] The object of the present invention is to provide a hammer crusher with a screening structure in order to solve the problem that traditional crushers cannot distinguish between broken

Method used

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  • Hammer crusher with screening structure
  • Hammer crusher with screening structure

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Embodiment Construction

[0013] The hammer crusher with screening structure is mainly composed of a crushing frame body, a bottom tank body, a driving device, a hammer shaft assembly, and an under-screen conveying mechanism. The driving device is composed of motor 1, elastic coupling 2, 3, short shaft assembly 3, and small pulley 13; the hammer shaft assembly is composed of hammer body 20, hammer head 33, bearing 18, large pulley 15, and toothed pulley 19 The conveying mechanism under the screen is composed of sprocket 17, bearing 16, scraper chain 25, bearing 23 and toothed pulley 22.

[0014] Such as Figure 1~2 As shown, an upper wing plate 29, an upper middle plate 28, a lower middle plate 30, a bottom plate 31 and an under-screen conveying middle plate 26 are arranged on the crusher bottom tank body 6; the upper middle plate 28 is convex, and the lower middle plate 30 It is flat, and the upper and lower middle plates overlap at both ends to form a space with a high middle and low ends. In this s...

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Abstract

The invention specifically relates to a hammer crusher with a screening structure, which belongs to the technical field of coal mine machinery. The hammer crusher is used for working face crossheading of an underground coal mine and comprises a bottom groove body, a crushing rack body, a drive unit, a hammer shaft assembly and a below-sieve conveying mechanism. Coal conveyed from the tail of a loading machine is conveyed to sieve meshes in the upper middle plate of the crusher through the scraper plate chain of the loading machine for screening; coal with a size smaller than the size of the sieve meshes falls down to the below-sieve conveying mechanism, is then transferred to a U-shaped port and enters coal flow on the scraper plate chain of the loading machine, which enables crushing of the coal when the coal passes through the hammerhead of the crusher to be avoided; coal with a size greater than the size of the sieve meshes is conveyed to the hammerhead of the crusher by the scraper plate chain of the loading machine for crushing, and coal which is crushed to a size smaller than the size of the sieve meshes falls down through the sieve meshes or is transferred by the scraper plate chain of the loading machine so as to prevent secondary crushing; coal with a size greater than the size of the sieve meshes is further crushed with the hammerhead of the crusher, and above-mentioned operation is repeated. The objective of the invention is to crush large coal transported by the loading machine to desired specifications during transporting.

Description

technical field [0001] The invention relates to the technical field of coal mine machinery equipment, in particular to a hammer crusher with a screening structure. Background technique [0002] At present, in the coal market, the price of lump coal is much higher than the price of fine coal, and it is the wish and pursuit of coal mine users to increase the output rate of lump coal. However, the current crusher does not have the function of screening and grading, but crushes all the coal transported by the loader. This crushing method seriously reduces the output rate of lump coal, leading to low coal prices and affecting coal mine income. Secondly, the traditional crusher crushes all the coal indiscriminately, resulting in greater wear of the hammer head and reducing the service life of the hammer head. Contents of the invention [0003] The object of the present invention is to provide a hammer crusher with a screening structure so as to solve the problem that tradition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C13/04B02C13/26B02C13/284B02C13/30
Inventor 沈建国郑扬杨刚雷赵举于远龙翟志成吴迪孙锡阔彭军辉
Owner CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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